Secret Valley was an Australian children's television adventure series from 1980 made by the Grundy Organisation and first shown on the Australian Broadcasting Corporation.

Secret Valley was a fictitious children's holiday camp in Bildarra which had been transformed from a run down ghost town into a resort. The children who worked and visited the camp often found themselves in battle against a gang of "bad" kids - Spider McGlurk and his gang from "Spider Cave". These battles usually featured flour bombs and other food related missiles and everyone inevitably ended up in a big mess.

Spider McGlurk and his gang were not the biggest threat to the peace at Secret Valley. Secret Valley was also under threat of closure by the local council, and property developer William Whopper played by Hugh Keays-Byrne.

Produced by Roger Mirams who also produced a spin-off series in 1986, amongst other programs and series.

The 1980 pilot was directed by Howard Rubie and written by Terry Bourke.

The series was aired in New Zealand, Spain, the UK and the Netherlands in 1982/1983 by KRO television. It was also broadcasting by the Dutch TV station Kindernet in 1989/1990.